Curiosities

Sat, 2016-11-19

The evolutionary history of life on Earth traces the processes by which living and fossil organisms have evolved since life appeared on the planet, until the present day. Earth formed about 4.5 billion years (Ga) ago and there is...

Sat, 2016-11-19

Fossils are evidence of ancient life forms or ancient habitats which have been preserved by natural processes. They can be the actual remains of a once living thing, such as bones or seeds, or even traces of past events such as dinosaur footprints, or the ripple marks on a...

Sat, 2016-11-19

Impact events, proposed as causes of mass extinction, are when the planet is struck by a comet or meteor large enough to create a huge shock wave felt around the globe. Widespread dust and debris rain down, disrupting the climate and causing extinction on a global, rather...

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